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我厂对矿粉的处理,原是土烧结(平地吹)成块再破碎过筛入炉。这一生产过程存在一些问题: 1.锰矿粉的烧结,结块率低,一般不到70％,这样破碎过筛后的入炉成品率只有40％左右。 2.土烧结是人工操作,拌料和烧结过程劳动强度大,工作条件差。烧结过程中,大量的烟尘污染环境,影响人体健康。 3.土烧结矿成份中的FeO较高,进入高炉后吸热量较大,降低了炉温,焦比升高,影响各处经济指标。
I plant the treatment of ore powder, the original soil sintering (flat ground) into pieces and then broken into the furnace. This production process has some problems: 1. Manganese ore powder sintering, caking rate is low, generally less than 70%, so after crushing and sifting into the furnace yield of only about 40%. 2. Soil sintering is manual operation, mixing material and sintering process labor-intensive, poor working conditions. Sintering process, a large number of smoke pollution of the environment, affecting human health. 3 earth sinter FeO content is higher, after entering the blast furnace heat absorption is larger, reducing the furnace temperature, coke ratio increased, affecting various economic indicators.